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Title: Broadband light emission from optically-trapped carbon nanotubes
Authors: Ramachandran, Hema
Dharmadhikari, A.K.
Dharmadhikari, J.A.
Mathur, Deepak
Keywords: Field-Emission
Issue Date: Nov-2009
Publisher: IOP Publishing Ltd.
Citation: Journal of Physics: Conference Series, 2009, Vol.194, 012054
Abstract: Optical micromanipulation of carbon nanotubes (CNT), that has hitherto been elusive, has been achieved in an aqueous suspension of CNTs in an optical tweezers setup, via the mediation of microbubbles. These microbubbles are formed when CNT bundles are brought to the focal volume. With the bubbles themselves being easily trappable in the tweezers, the CNTs adhered to the surface of the microbubbles can now be held immobilised. CNTs held in the optical trap focus are found to emit bright light in the visible, which may be a sustained glow, or an uncontrolled flare. These observations and the underlying mechanisms will be discussed in the talk.
Description: Open Access. XXVI International Conference on Photonic, Electronic and Atomic Collisions.
ISSN: 1742-6588
1742-6596 (Online)
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Copyright: 2009 IOP Publishing Ltd.
Appears in Collections:Research Papers (LAMP)

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